Improvement in plows



UNITED STATES PATENT CFFICE.

ANDREW W. JOHNSON, OE CHICAGO, ILLINOIS.

IMPROVEMENT IN PLows.

Specification forming part of Letters Patent No. 174,36?, dated March 7,1876; application filed December 2, 1875.

To all whom it may concern Be it known that I, ANDREW W. JOHNSON,

. of Chicago, in the county of Cook and State of Illinois, have inventednew and useful Improvements in Plows;l and I do hereby declare that thefollowing is a full, clear, and exact description thereof', referencebeing had`to the accompanying drawing, forming part of thisspecification.

The object of my invention consists in making a plow that can be renewedin certain of its parts and be strong and durable, make an even, smoothfurrow, be of light draft, and be readily adjusted to plow furrows ofvarying thickness or width.

My invention consists of the various Inechanisms and devices hereinafterfully described and claimed.

In the accompanying drawing, Figure 1 represents a top or plan View ofmy plow Fig. 2,

` a side elevation of the land-side; Fig. 3, a vertical section, showingthe other side of the plow with the mold-board removed 5 Fig. 4, atransverse section of the beam, showing the devices for attaching thecolter 5 and Fig. 5, a section taken at the line a'.

I make a metallic beam, A, which extends across the top of theland-side, and forms a continuous piece with the handle B. The point endofthe beam is widened vertically at C, and is provided with holes, inwhich the clevis can be raised or lowered to ymake the plow run more orless deep in the ground. The land-side D extends up to the beam, and iscast with an offset or shoulder, which receives the beam. The beam restson this shoulder D, and is bolted to the top of the land-side, whichextends above this shoulder, by the bolts F. There are lugs G on thelower edge of this land-side D, to which the shoe H is bolted by thebolts l. The front lug has a vertical part, to which the shoe is bolted,and a horizontal part, H', to( which the plow share or point and thefront end of the moldboard are attached by the bolts a a. There is alsoa lug, b, cast on the landside, to which the mold-board is. also bolted.vThe shoe H can makes the plow strongly braced.

be renewed, when worn, by removing these bolts I. The handle J is boltedto the moldboard K at L, and extends diagonally across, and forms abrace, being bolted to the frontof the plow at M. There is abrace, N,which extends from the mold-board to the land-side, and is fastened toeach by bolts passing through its ends, turned at an angle to fit them.This The colter O is fastened to the beam by the band P; and the screwbolt Q, Whose ends rest against the plow-beam, draws, byitsscrew-thread, the band P firmly against the colter, and secures it inplace. R is a piece made thin at its middle and thick at its ends, andis used for adjusting the colter.

By raising this loose` piece R, so that the .Y thick lower end isbrought between the plowbeam and the colter, which throws the lower endof the colter more to the land, and by lowering this piece, so as tobring the thick upper end. between the beam and colter the lower orcutting end of the colter is thrown from the land. This screw-boltfastening enables a very quick and easy adjustment of the colter, asdesired.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, isl 1..The combination of the land-side D,provided with a shoulder extending entirelyacross it, and the beam A,resting upon said shoulder, substantially as described.

2. The land-side D, constructed with a shoulder upon its upper edge forthe purpose of receiving the beam, and with lugs upon its lower edge forthe purpose of fastening the shoe to the land-side, substantially asdescribed.

3. The combination of the band P, the double wedge R,.the set-screw Q,and the colter O, substantially as and for the purposes set forth.

ANDREW W. JOHNSON.

Witnesses:

LEWIS TEGNER,

HEINRICH F. BRUNS.

